Evidence map›Paper›PMID 33468643›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

DNA origami demonstrate the unique stimulatory power of single pMHCs as T cell antigens.

Joschka Hellmeier, Rene Platzer, Alexandra S Eklund, Thomas Schlichthaerle, Andreas Karner, Viktoria Motsch, Magdalena C Schneider, Elke Kurz, Victor Bamieh, Mario Brameshuber and 6 more

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 1 pooled it
8.1field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

56 citing papers in PubMed, 1 synthesis or guideline pooled it, 119 citations in OpenAlex.

  1. Analyzing Molecular Determinants of Nanodrugs' Cytotoxic Effects.International journal of molecular sciences · 2025
    Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Clustering of Membrane Receptors: Insights from DNA Origami-Based Approaches.Small (Weinheim an der Bergstrasse, Germany) · 2025
    Review
  9. Proofreading and single-molecule sensitivity in T cell receptor signaling by condensate nucleation.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Fluidic Interface for Surface-based DNA Origami Studies.ACS applied materials & interfaces · 2024
    Article
  17. Differential roles of kinetic on- and off-rates in T-cell receptor signal integration revealed with a modified Fab'-DNA ligand.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  18. Article
  19. Review
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

16 authors at 5 institutions in 3 countries.

Joschka HellmeierInstitute of Applied Physics, TU Wien, 1040 Vienna, Austria.ORCID https://orcid.org/0000-0002-7153-9121
Rene PlatzerCenter for Pathophysiology, Infectiology and Immunology, Institute for Hygiene and Applied Immunology, Medical University of Vienna, 1090 Vienna, Austria.
Alexandra S EklundMax Planck Institute of Biochemistry, 82152 Martinsried, Germany.ORCID https://orcid.org/0000-0003-1047-2100
Thomas SchlichthaerleMax Planck Institute of Biochemistry, 82152 Martinsried, Germany.ORCID https://orcid.org/0000-0003-4444-2575
Andreas KarnerUniversity of Applied Sciences Upper Austria, 4020 Linz, Austria.
Viktoria MotschInstitute of Applied Physics, TU Wien, 1040 Vienna, Austria.ORCID https://orcid.org/0000-0002-4860-4247
Magdalena C SchneiderInstitute of Applied Physics, TU Wien, 1040 Vienna, Austria.ORCID https://orcid.org/0000-0002-3771-8353
Elke KurzKennedy Institute of Rheumatology, University of Oxford, Oxford OX3 7FY, United Kingdom.
Victor BamiehInstitute of Applied Physics, TU Wien, 1040 Vienna, Austria.
Mario BrameshuberInstitute of Applied Physics, TU Wien, 1040 Vienna, Austria.ORCID https://orcid.org/0000-0001-8672-2255
Johannes PreinerUniversity of Applied Sciences Upper Austria, 4020 Linz, Austria.ORCID https://orcid.org/0000-0002-6755-6543
Ralf JungmannMax Planck Institute of Biochemistry, 82152 Martinsried, Germany.ORCID https://orcid.org/0000-0003-4607-3312
Hannes StockingerCenter for Pathophysiology, Infectiology and Immunology, Institute for Hygiene and Applied Immunology, Medical University of Vienna, 1090 Vienna, Austria.ORCID https://orcid.org/0000-0001-6404-4430
Gerhard J SchützInstitute of Applied Physics, TU Wien, 1040 Vienna, Austria.ORCID https://orcid.org/0000-0003-1542-1089
Johannes B HuppaCenter for Pathophysiology, Infectiology and Immunology, Institute for Hygiene and Applied Immunology, Medical University of Vienna, 1090 Vienna, Austria.ORCID https://orcid.org/0000-0003-2634-8198
Eva SevcsikInstitute of Applied Physics, TU Wien, 1040 Vienna, Austria; eva.sevcsik@tuwien.ac.at.ORCID https://orcid.org/0000-0002-2155-1675
TU Wien · ATCenter for NanoScience · DEMedical University of Vienna · ATUniversity of Applied Sciences Upper Austria · ATUniversity of Oxford · GB

Funding

Austrian Science Fund FWF I 4662Austrian Science Fund FWF P 33958Austrian Science Fund FWF P 34164Austrian Science Fund FWF V 538Wellcome Trust 100262 Z/12/Z
6 · The paper itself

Abstract

T cells detect with their T cell antigen receptors (TCRs) the presence of rare agonist peptide/MHC complexes (pMHCs) on the surface of antigen-presenting cells (APCs). How extracellular ligand binding triggers intracellular signaling is poorly understood, yet spatial antigen arrangement on the APC surface has been suggested to be a critical factor. To examine this, we engineered a biomimetic interface based on laterally mobile functionalized DNA origami platforms, which allow for nanoscale control over ligand distances without interfering with the cell-intrinsic dynamics of receptor clustering. When targeting TCRs via stably binding monovalent antibody fragments, we found the minimum signaling unit promoting efficient T cell activation to consist of two antibody-ligated TCRs within a distance of 20 nm. In contrast, transiently engaging antigenic pMHCs stimulated T cells robustly as well-isolated entities. These results identify pairs of antibody-bound TCRs as minimal receptor entities for effective TCR triggering yet validate the exceptional stimulatory potency of single isolated pMHC molecules.

Indexed as

AnimalsAntigen-Presenting CellsCD4-Positive T-LymphocytesDNAGene ExpressionLigandsLipid BilayersLymphocyte ActivationMajor Histocompatibility ComplexMiceNucleic Acid ConformationPhosphatidylcholinesPrimary Cell CultureProtein BindingReceptors, Antigen, T-CellSignal Transduction1-palmitoyl-2-oleoylphosphatidylcholineDNALigandsLipid BilayersPhosphatidylcholinesReceptors, Antigen, T-CellSingle-Chain AntibodiesDNA origaminanobiotechnologypMHCserial engagementT cell activation

Identifiers

PMID33468643
PMCPMC7848602
OpenAlexW3121795657

What OpenQuestion holds

Textmetadata
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.